the marks obtained by 110 students in an examination are given below marks 30-35 35-40 40-45 45-50 50-55 55-60 60-65 number of students 14 16 28 23 18 8 3 find the mean marks of the students.
Mohammed
Guys, does anyone know the answer?
get the marks obtained by 110 students in an examination are given below marks 30-35 35-40 40-45 45-50 50-55 55-60 60-65 number of students 14 16 28 23 18 8 3 find the mean marks of the students. from screen.
The marks obtained by 110 students in an examination are given below : Marks: 30
The marks obtained by 110 students in an examination are given below : Marks: 30-35 35-40 40-45 45-50 50-55 55-60 60-65 Number of Students: 14 16 28 23 18 8 3 Find the mean marks of the students.
Get Answers to all your Questions
Home School
The marks obtained by 110 students in an examination are given below : Marks: 30-35
#CBSE 10 CLASS #MATHS #SCHOOL #STATISTICS
The marks obtained by 110 students in an examination are given below :
Marks: 30-35 35-40 40-45 45-50 50-55 55-60 60-65
Number of Students: 14 16 28 23 18 8 3
Find the mean marks of the students.
xi 32.5 37.5 42.5 47.5 52.5 57.5 62.5
fi 14 16 28 23 18 8 3
ui -3 -2 -1 0 1 2 3
fiui -48 -32 -28 0 18 16 9
Posted by
Safeer PP
CrackShare View full answer
JEE Main with"AI Coach"
Similar Questions
for function,why do we write f(x)?
Who do you change sugarcane as black colour turn to white
Who they will change the colour of sugarcane black to white
Trending Articles/News
Assam Paper Leak: SEBA postpones Class 10 exam scheduled for March 18
CBSE 2023 Exam: CBSE Class 10 social science paper 'easy to moderate'; Analysis, feedback
CBSE Class 10 Social Science exam tomorrow; Sample paper, question bank
Latest Question
Identify the pair of physical quantities which have different dimensions:Option: 1 Wave number and Rydberg's constantOption: 2 Stress and Coefficient of elasticityOption: 3 Coercivity and Magnetisation
A random variable X has the following probability distribution:
The marks obtained by 110 students in an examination are given below:[ Marks: 30 35 35 40 40 45 45 50 50 55 55 60 60 65 ]Frequency: 14 [ 16 28 23 18 8 3 ]Find the mean marks of the students.
The marks obtained by 110 students in an examination are given below:[ Marks: 30 35 35 40 40 45 45 50 50 55 55 60 60 65 ]Frequency: 14 [ 16 28 23 18 8 3 ]Find the mean marks of the students.
Byju's Answer Standard X Mathematics
Direct Method of Finding Mean
The marks obt... Question
The marks obtained by 110 students in an examination are given below:
Marks: 30 – 35 35 – 40 40 – 45 45 – 50 50 – 55 55 – 60 60 – 65
Frequency: 14 16 28 23 18 8 3
Find the mean marks of the students.
Open in App Solution
Let the assumed mean, A be 47.5.
Here, h = 5
Marks Mid-Values(xi) Frequency (fi)di=xi-47.5 ui=xi-47.55 fiui
30–35 32.5 14 −15 −3 −42
35–40 37.5 16 −10 −2 −32
40–45 42.5 28 −5 −1 −28
45–50 47.5 23 0 0 0
50–55 52.5 18 5 1 18
55–60 57.5 8 10 2 16
60–65 62.5 3 15 3 9 ∑fi=110 ∑fiui=-59 We know Mean =A+h×∑fiui∑fi
∴ Mean marks of the students
=47.5+5×-59110 =47.5-2.68 =44.82
Hence, the mean marks of the students is 44.82.
Suggest Corrections 43
SIMILAR QUESTIONS
Q. The marks in science of 80 students of class X are given below: Find the mode of the marks obtained by the students in science.Marks: 0−10 10−20 20−30 30−40 40−50 50−60 60−70 70−80 80−90 90−100
Frequency: 3 5 16 12 13 20 5 4 1 1
Q. The marks in science of80
students of class X are given below. Find the mode of the marks obtained by the students in science
C.I. 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100
Freq. 3 5 16 12 13 20 5 4 1 1
Q. Find the mean )arithmetic) of following frequency distribution :Expenditure on water
(in Rs.) 15-20 20-25 25-30 30-35 35-40 40-45 45-50 50-55 55-60 60-65 65-70
No. of Houses 7 5 7 8 9 11 7 5 4 4 3
Q. The marks obtained by 12 students in an examination (out of50 ) are given below. 18 , 35 , 2 , 27 , 40 , 0 , 21 , 33 , 27 , 8 , 36 , 23
Find the mean marks.
Q. Following are marks obtained in Mathematics by students of Class X.Marks obtained 0-10 10-20 20-30 30-40 40-50 50-60 60-70
No. of students 2 10 12 15 13 8 4
Find the median of the marks obtained in Mathematics.
View More RELATED VIDEOS
Mean MATHEMATICS Watch in App EXPLORE MORE
Direct Method of Finding Mean
Standard X Mathematics
The marks obtained by 110 students in an examination are given below Marks 30
The marks obtained by 110 students in an examination are given below Marks 30 3535 4040 4545 5050 5555 6060 65Frequency 141628231883 Find the mean marks of the students - Given:The marks obtained by 110 students in an examination.To do:We have to find the mean marks of the students.Solution:We know that,Mean $=frac{sum{f_ix_i}}{sum{f_i}}$ Therefore, Mean $=frac{4930}{110}$$=frac{493}{11}$$=44.81$The mean marks of the students 44.81 marks.
Find the mean marks of the students.
AcademicMathematicsNCERTClass 10
Given:
The marks obtained by 110 students in an examination.
To do:
We have to find the mean marks of the students.
Solution:
We know that, Mean = ∑ f i x i ∑ f i =∑fixi∑fi Therefore, Mean = 4930 110 =4930110 = 493 11 =49311 =44.81 =44.81
The mean marks of the students 44.81 marks.
Tutorialspoint
Simply Easy LearningUpdated on 10-Oct-2022 10:52:42
1K+ ViewsPrint Article
Related Articles
How to get id from tr tag and display it in a new td with JavaScript?
In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.(a) Find how many students obtained marks equal to or more than ( 7 . )(b) How many students obtained marks below 4?"
The marks scored by 55 students in a test are given below:Prepare a cumulative frequency table."\n
The marks obtained by 10 students in a test are
60,72,70,64,56,52,71,54,62,59
60,72,70,64,56,52,71,54,62,59
. Find the mean marks of the students. Find the mean marks of the students if 6 extra marks are given to each student.
The marks obtained out of 50, by 102 students in a physics test are given in the frequency table below:Marks (
x x
):152022242530333845Frequency (
f f
):58112023181331Find the average number of marks.
In an examination , a student has to score 40%marks to pass. He gets 40 marks and fail by 40 marks. Find the maximum number of marks
In a class A of 25 students, 20 passed with ( 60 % ) or more marks; in another class B of 30 students, 24 passed with ( 60 % ) or more marks. In which class was a greater fraction of students getting with ( 60 % ) or more marks?
Evaluate:( tan 35^{circ} tan 40^{circ} tan 45^{circ} tan 50^{circ} tan 55^{circ} )
Two circles touch externally at a point ( P ). From a point ( T ) on the tangent at ( P ), tangents ( T O ) and TR are drawn to the circles with points of contact ( Q ) and ( R ) respectively. Prove that ( TQ = TR )."\n
If ( P A ) and ( P B ) are tangents from an outside point ( P ). such that ( P A=10 mathrm{~cm} ) and ( angle A P B=60^{circ} ). Find the length of chord ( A B ).
The marks scored by 40 students of class IX in mathematics are given below:
81,55,68,79,85,43,29,68,54,73,47,35,72,64,95,44,50,
77,64,35,79,52,45,54,70,83,62,64,72,92,84,76,63,43,
54,38,73,68,52,54.
81,55,68,79,85,43,29,68,54,73,47,35,72,64,95,44,50,77,64,35,79,52,45,54,70,83,62,64,72,92,84,76,63,43,54,38,73,68,52,54.
Prepare a frequency distribution with class size of 10 marks.
The percentage of marks obtained by students of a class in mathematics are : 64, 36, 47, 23, 0, 19, 81, 93, 72, 35, 3, 1. Find their mean.
The points P, Q, R, S, T, U, A and B on the number line are such that,
TR=RS=SU TR=RS=SU and AP=PQ=QB AP=PQ=QB
. Name the rational numbers represented by P, Q, R, and S."
The marks obtained by (out of 100 ) a group of students are given below:76,98,24,58,69,98,81,77,45,91Find the mean of the given data.
From an external point ( P ), tangents ( P A=P B ) are drawn to a circle with centre ( O ). If ( angle P A B=50^{circ} ), then find ( angle A O B ).
Previous Page Next Page Advertisements
Guys, does anyone know the answer?